Power Controller 8-Pin SOIC Tube

These easy-to-use 8-pin integrated circuits contain all of the features needed to develop an IEEE 802.3af-compliant powered device (PD). The TPS2375-1 and TPS2377-1are second generation PDCs (PD Controllers) featuring a 100-V ratings and true open-drain, power-good function. These devices are auto-retry versions of selected TPS2375 family members.Information on the TPS2375/6/7 devices can be found on the TPS2375/6/7 data sheet (SLVS525A). In addition to the basic functions of detection, classification, and undervoltage lockout (UVLO), these controllers include an adjustable inrush limiting feature. The TPS2375-1 has 802.3af-compliant UVLO limits, and the TPS2377-1 has legacy UVLO limits. The TPS2375 family specifications incorporate a voltage offset of 1.5 V between its limits and the IEEE 802.3af specifications to accommodate the required input diode bridges used to make the PD polarity insensitive.

Auto-Retry After Current-Limit Fault

TPS2375-1:IEEE 802.3af Thresholds

TPS2377-1:Legacy Thresholds

Fully Supports IEEE 802.3af Specification

Integrated 0.58-O, 100-V, Low-Side Switch

15-kV System Level ESD Capable

Programmable Inrush Current Control

Fixed 450-mA Current Limit

Open-Drain, Power-Good Reporting

Industrial Temperature Range: -40°C to 85°C

8-Pin SOIC and TSSOP Packages

APPLICATIONS

• VoIP Phones
• WLAN Access Points
• Security Cameras
• Internet Appliances
• POS Terminals